SLAM Vehicle Navigation With Attention-Based Obstacle Intervention
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Solution Overview
Problem
Existing simultaneous localization and mapping (SLAM)-based navigation systems lack effective mechanisms for soliciting occupant intervention when obstacles are detected, particularly in scenarios where the occupant is not paying attention.
Innovation Solution
A method and system that create a vehicle path plan and motion control instructions, identify suspected obstacles, and request occupant intervention through displays and sensors. The system determines if the occupant is paying attention and may circumnavigate obstacles without intervention if the occupant is not attentive. Augmented reality elements and notifications are used to engage the occupant and confirm obstacle relevance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the system requests occupant intervention when obstacles are detected, then navigation safety is improved, but the system becomes less autonomous and more complex
Solution Approach 1:
The system dynamically adjusts the level of autonomy based on real-time assessment of occupant attention. When the attention sensor detects the occupant is attentive, the system requests intervention and reduces autonomous operation. When the occupant is inattentive, the system increases autonomous operation to circumnavigate obstacles without intervention. This dynamic adjustment resolves the contradiction by making the automation level adaptive rather than fixed.
Solution Approach 2:
The system implements a feedback loop using attention sensors to monitor occupant state and adjust system behavior accordingly. The feedback mechanism determines whether to request occupant intervention or autonomously handle obstacles based on real-time attention data. This feedback-driven approach allows the system to maintain safety through selective human-in-the-loop operation while preserving autonomy when appropriate.
2Reliability
If the system monitors occupant attention to determine intervention necessity, then navigation safety is improved, but device complexity increases due to additional sensors and processing
Solution Approach 1:
The system uses self-service by leveraging existing infotainment display systems to present obstacle information and intervention requests to the occupant. Rather than requiring separate dedicated displays or complex notification systems, the patent repurposes available display infrastructure to serve the safety monitoring function, thereby reducing overall system complexity while maintaining safety effectiveness.
3Reliability
If the system requests frequent occupant interventions, then navigation safety is improved, but ease of operation deteriorates due to increased occupant workload
Solution Approach 1:
The system applies partial action by selectively requesting occupant intervention only when necessary based on attention monitoring and obstacle assessment. Rather than requiring continuous or frequent interventions, the system intervenes partially - only when the occupant is attentive and an obstacle requires human judgment. This reduces overall occupant workload while maintaining safety for critical situations.
Data Source
AI summary
A method of soliciting an occupant intervention for a simultaneous localization and mapping-based navigation system. A vehicle path plan and a motion control instruction are created and a suspected obstacle in a drive path is identified, wherein the drive path provides a portion of the vehicle path plan. The method further includes providing an indication on a first display that an intervention by an occupant is requested and determining if the occupant is paying attention to the indication on the first display. A system of performing the method includes a controller configured to execute instructions executing the method.